Everpure Precoat Filters

Precoat filters are an innovative water treatment technology developed by Pentair Everpure®.

Precoat filters innovatively combine sediment and carbon filtration in one cartridge with six times more filtering surface area than other systems of similar size, making it a popular choice for foodservices and residential water filtration.

Each filter consists of a pleated membrane as well as a blend of very fine activated carbon called Micro-Pure®. The fine Micro-Pure® powder removes chlorine, taste, odour and colour from the water, as well as superb sediment filtration rated at 0.5 micron absolute.

When a new precoat cartridge is installed, inflow water forces the fine powder to adhere onto the pleated membrane, forming a permanent layer (known as “cake” or precoat) of Micro-Pure® powder. This layer does not crumble or disintegrate and remains intact.

Everpure precoat filters are designed in a variety of shapes to accommodate different treatment needs, yet they all use a heavy-duty, aluminum cartridge housing to protect the system from splitting or bursting. The cans are lined with a food-grade polymer that prevents water from coming in contact with the aluminum. Another advantage of this design is the prevention of hand-contact and contamination during cartridge replacement.

The diagram on the right displays a cut-away of a typical Everpure precoat filter. Untreated inlet water flows into the cartridge (1) through a tubing and into the filter chamber. The water passes through the precoat layer (3) and gets treated from sediments, odour, taste, chlorine and harmful cysts like Giardia. The result is fresh-tasting water (4) that is safe for consumption.

Some Everpure precoat filters have an additional chamber for treatment of certain chemicals like volatile organic compounds (VOCs), trihalomethanes (THMs) and MTBE, a fuel additive. Nonetheless, all Everpure precoat models pass NSF Standards 53 and 42 which address the ability to remove harmful contaminants like lead, asbestos and cysts as well as the improvement of water aesthetics like taste and odour.